Who has the range advantage on A 2 3 rainbow?
Clear Button edge: the Big Blind has double the gutshots, and the Button has more underpairs.
BTN vs BB single-raised pot: the button opens, the big blind calls.
medium / rainbow / connected
Share of each range that is sets, two pair, overpairs, straights or better, and combo draws. This is who wins the big pots.
The Button leads on a live board with no nut edge for either side. Bet the Button's equity and stay honest on bad turns. Try a high card in place of a connector and watch the board flip the Button's way.
A strange split. The button holds more of the strong aces and every 54, the hand that flopped the wheel, while the big blind re-raises most of its 54 suited before the flop. The big blind answers with double the gutshots, hands like 64, 53, and 42 that need one card. The top of the board belongs to the raiser; the turn decides how long it stays there.
Range breakdown
| Category | Button | Big Blind | Edge |
|---|---|---|---|
| Gutshot | 5.7% | 13.0% | +7.3% BB |
| Underpair | 12.2% | 7.1% | +5.1% BTN |
| Top Pair, Good Kicker | 9.8% | 5.3% | +4.5% BTN |
| Middle Pair | 1.2% | 5.3% | +4.1% BB |
| Bottom Pair | 0.6% | 4.4% | +3.8% BB |
| Air | 52.2% | 48.5% | +3.7% BTN |
Sorted by impact. Computed exhaustively by the Poker Shark equity engine over both full ranges.
Knowing the edge is step one
Playing it against opponents who miss it is where the money comes from. Train on boards like this one.
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